Touch driving unit, touch panel and display device

ABSTRACT

The present disclosure provides a touch driving unit, including a shift register module configured to generate a triggering signal, a grating module configured to generate a control signal in accordance with the triggering signal and control a signal from an output module, an amplification module configured to amplify the control signal, and the output module configured to output a signal from a touch signal end or a signal from a common electrode signal end.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims a priority of the Chinese patentapplication No. 201510355862.0 filed on Jun. 24, 2015, which isincorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of display technology, inparticular to a touch driving unit, a touch panel and a display device.

BACKGROUND

Along with the development of the electronic technology, more and moredisplay devices have been operated by a user in a human-machineinteraction mode. Currently, for the human-machine interaction mode, amechanical button mode has been replaced with a touch sensing mode.Taking a touch panel as an example, the touch panel includes a pluralityof scanning electrodes and sensing electrodes. In the touch sensingmode, when the touch panel is touched by the user, a capacitance betweenthe scanning electrode and the sensing electrode will be changed at apoint where the touch has been made, and a sensing signal in the sensingelectrode will be changed accordingly. A position of the point where thetouch has been made may be acquired by analyzing the sensing signal, soas to achieve the human-machine interaction between the user and thedisplay device through the touch panel installed on the display device.The touch panel installed on the display device includes multiple levelsof touch driving units each configured to provide a scanning signal tothe scanning electrode.

In the related art, the touch driving unit includes a shift registermodule, a phase reversal control module, a gating module, anamplification module and an output module. The phase reversal controlmodule is configured to generate a phase reversal control signal inaccordance with a received triggering signal. The phase reversal controlsignal is then inputted into the gating module, so as to control thegating module to generate a signal for controlling the output of theoutput module. However, these modules each consist of a plurality oftransistors, so the touch driving unit is of a relatively complexstructure, and the resultant power consumption is relatively large.

SUMMARY

An object of the present disclosure is to provide a touch driving unit,a touch panel and a display device, so as to simplify the structure ofthe touch driving unit and reduce the power consumption thereof.

In one aspect, the present disclosure provides in some embodiments atouch driving unit, including: a shift register module, an input end ofwhich is connected to a first clock signal end and an input signal end,an output end of which is connected to a gating module, and which isconfigured to generate a triggering signal; the gating module, an inputend of which is connected to a second clock signal end, a touch samplingsignal end, a common electrode enabling signal end, a low level end andthe shift register module, an output end of which is connected to anamplification module, and which is configured to generate a controlsignal in accordance with the triggering signal so as to control asignal outputted from an output module; the amplification module, aninput end of which is connected to the gating module, an output end ofwhich is connected to the output module, and which is configured toamplify the control signal; and the output module, an input end of whichis connected to a touch signal end and a common electrode signal end, anoutput end of which is connected to an output end of the touch drivingunit, and which is configured to output a signal from the touch signalend or a signal from the common electrode signal end.

In another aspect, the present disclosure provides in some embodiments atouch panel including multiple levels of the above-mentioned touchdriving units.

In yet another aspect, the present disclosure provides in someembodiments a display device including the above-mentioned touch panel.

According to the touch driving unit, the touch panel and the displaydevice in the embodiments of the present disclosure, the touch drivingunit includes the shift register module, the grating module, theamplification module and the output module. As compared with the relatedart where the touch driving unit further includes a phase reversalcontrol module, the touch driving unit in the embodiments of the presentdisclosure does not include any phase reversal control module, and thegrating module may generate the control signal directly in accordancewith the triggering signal generated by the shift register module, so asto control the output of the output module. As a result, it is able tosimplify the structure of the touch driving unit and reduce the powerconsumption thereof while ensuring a normal operation of the touchdriving unit.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate the technical solutions of the present disclosureor the related art in a clearer manner, the drawings desired for thepresent disclosure or the related art will be described hereinafterbriefly. Obviously, the following drawings merely relate to someembodiments of the present disclosure, and based on these drawings, aperson skilled in the art may obtain the other drawings without anycreative effort.

FIG. 1 is a schematic view showing a touch driving unit according to atleast one embodiment of the present disclosure;

FIG. 2 is another schematic view showing the touch driving unitaccording to at least one embodiment of the present disclosure;

FIG. 3 is a signal sequence diagram of the touch driving unit in FIG. 2;

FIG. 4 is yet another schematic view showing the touch driving unitaccording to at least one embodiment of the present disclosure; and

FIG. 5 is a schematic view showing a connection mode of multiple levelsof the touch driving units according to at least one embodiments of thepresent disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to make the objects, the technical solutions and the advantagesof the present disclosure more apparent, the present disclosure will bedescribed hereinafter in a clear and complete manner in conjunction withthe drawings and embodiments. Obviously, the following embodimentsmerely relate to a part of, rather than all of, the embodiments of thepresent disclosure, and based on these embodiments, a person skilled inthe art may, without any creative effort, obtain the other embodiments,which also fall within the scope of the present disclosure.

Unless otherwise defined, any technical or scientific term used hereinshall have the common meaning understood by a person of ordinary skills.Such words as “first” and “second” used in the specification and claimsare merely used to differentiate different components rather than torepresent any order, number or importance. Similarly, such words as“one” or “one of” are merely used to represent the existence of at leastone member, rather than to limit the number thereof. Such words as“connect” or “connected to” may include electrical connection, direct orindirect, rather than to be limited to physical or mechanicalconnection. Such words as “on”, “under”, “left” and “right” are merelyused to represent relative position relationship, and when an absoluteposition of the object is changed, the relative position relationshipwill be changed too.

Referring to FIG. 1, a touch driving unit in some embodiments of thepresent disclosure includes a shift register module P1, a gating moduleP2, an amplification module P3 and an output module P4. An input end ofthe shift register module P1 is connected to a first clock signal endClk1 and an input signal end Input, an output end of the shift registermodule P1 is connected to the grating module P2, and the shift registermodule P1 is configured to generate a triggering signal. An input end ofthe gating module P2 is connected to a second clock signal end Clk2, atouch sampling signal end TX_EN, a common electrode enabling signal endVCOM_EN, a low level end VGL and the shift register module P1, an outputend of the gating module P2 is connected to the amplification module P3,and the gating module P2 is configured to generate a control signal inaccordance with the triggering signal, so as to control a signaloutputted by the output module P4. An input end of the amplificationmodule P3 is connected to the gating module P2, an output end of theamplification module P3 is connected to the output module P4, and theamplification module P3 is configured to amplify the control signal. Aninput end of the output module P4 is connected to a touch signal end TXand a common electrode signal end VCOM, an output end of the outputmodule P4 is connected to an output end Output of the touch drivingunit, and the output module P4 is configured to output a signal from thetouch signal end Tx or a signal from the common electrode signal endVCOM.

According to the embodiments of the present disclosure, the touchdriving unit includes the shift register module P1, the gating moduleP2, the amplification module P3 and the output module P4. As comparedwith the related art where the touch driving unit further includes aphase reversal control module, the touch driving unit in the embodimentsof the present disclosure does not include any phase reversal controlmodule, and the grating module P2 may generate the control signaldirectly in accordance with the triggering signal generated by the shiftregister module, so as to control the output of the output module P4. Asa result, it is able to simplify the structure of the touch driving unitand reduce the power consumption thereof while ensuring a normaloperation of the touch driving unit. Referring to FIG. 2, the structuresof the shift register module P1, the gating module P2, the amplificationmodule P3 and the output module P4 in FIG. 1 will be describedhereinafter in further details.

The shift register module P1 includes a first phase inverter Ml, asecond phase inverter M2, a first three-state gate S1 and a secondthree-state gate S2. An input end of the first phase inverter M1 isconnected to the first clock signal end Clk1, a first control end of thefirst three-state gate S1, and a second control end of the secondthree-state gate S2, an output end of first phase inverter M1 isconnected to a second control end of the first three-state gate S1 and afirst control end of the second three-state gate S2. An input end of thesecond phase inverter M2 is connected to an output end of the firstthree-state gate S1, an output end of the second three-state gate S2 andthe gating module P2, and an output end of the second phase inverter M2is connected to an input end of the second three-state gate S2 and thegating module P2. An input end of the first three-state gate S1 isconnected to the input signal end Input, the output end of the firstthree-state gate S1 is connected to output end of the second three-stategate S2 and the gating module P2, the first control end of the firstthree-state gate S1 is connected to the first clock signal end Clk1 andthe second control end of the second three-state gate S2, and the secondcontrol end of the first three-state gate S1 is connected to the firstcontrol end of the second three-state gate S2. The input end of thesecond three-state gate S2 is connected to the gating module P2, theoutput end of the second three-state gate S2 is connected to the gatingmodule P2, and the second control end of the second three-state gate S2is connected to the first clock signal end Clk1.

The gating module P2 includes a first transmission gate F1, a secondtransmission gate F2, a third phase inverter M3, a first transistor T1,a second transistor T2 and a third transistor T3. An input end of thefirst transmission gate F1 is connected to the second clock signal endClk2, an output end of the first transmission gate F1 is connected to asource electrode of the first transistor T1, an input end of the thirdphase inverter M3 and a first control end of the second transmissiongate F2, a first control end of the first transmission gate F1 isconnected to the shift register module P1, and a second control end ofthe first transmission gate F1 is connected to a gate electrode of thefirst transistor T1 and the shift register module P1. An input end ofthe second transmission gate F2 is connected to the touch samplingsignal end TX_EN, an output end of the second transmission gate F2 isconnected to a source electrode of the second transistor T2, a sourceelectrode of the third transistor T3 and the amplification module P3,the first control end of the second transmission gate F2 is connected tothe source electrode of the first transistor T1 and the input end of thethird phase inverter M3, and a second control end of the secondtransmission gate F2 is connected to an output end of the third inverterM3 and a gate electrode of the second transistor T2. The input end ofthe third phase inverter M3 is connected to the source electrode of thefirst transistor T1, and the output end of the third phase inverter M3is connected to the gate electrode of the second transistor T2. The gateelectrode of the first transistor T1 is connected to the shift registermodule P1, and a drain electrode of the first transistor T1 is connectedto the low level end VGL. The source electrode of the second transistorT2 is connected to the source electrode of the third transistor T3 andthe amplification module P3, and a drain electrode of the secondtransistor T2 is connected to a drain electrode of the third transistorT3 and the low level end VGL. The source electrode of the thirdtransistor T3 is connected to the common electrode enabling signal endVCOM_EN.

The amplification module P3 includes a fourth phase inverter M4, a fifthphase inverter M5, a sixth phase inverter M6 and a seventh phaseinverter M7. An input end of the fourth phase inverter M4 is connectedto the gating module P2, and an output end of the fourth phase inverterM4 is connected to an input end of the fifth phase inverter M5. Anoutput end of the fifth phase inverter M5 is connected to an input endof the sixth phase inverter M6. An output end of the sixth phaseinverter M6 is connected to an input end of the seventh phase inverterM7. The input end of the seventh phase inverter M7 is connected to theoutput module P4, and the output end of the seventh phase inverter M7 isconnected to the output module P4.

The output module P4 includes a third transmission gate F3 and a fourthtransmission gate F4. An input end of the third transmission gate F3 isconnected to the touch signal end TX, an output end of the thirdtransmission gate F3 is connected to the output end Output of the touchdriving unit and an output end of the fourth transmission gate F4, afirst control end of the third transmission gate F3 is connected to asecond control end of the fourth transmission gate F4 and theamplification module P3, and a second control end of the thirdtransmission gate F3 is connected to the amplification module P3. Aninput end of the fourth transmission gate F4 is connected to the commonelectrode signal end VCOM, the output end of the fourth transmissiongate F4 is connected to the output end Output of the touch driving unit,a first control end of the fourth transmission gate F4 is connected tothe amplification module P3, and the second control end of the fourthtransmission gate F4 is connected to the amplification module P3.

A connection mode among the shift register module P1, the gating moduleP2, the amplification module P3 and the output module P4 will bedescribed hereinafter.

The input end of the second phase inverter M2 is connected to the secondcontrol end of the first transmission gate F1 and the gate electrode ofthe first transistor T1, the output end of the second phase inverter M2is connected to the first control end of the first transmission gate F1,the first control end of the first transmission gate F1 is connected tothe input end of the second three-state gate S2, the output end of thesecond transmission gate F2 is connected to the input end of the fourthphase inverter M4, the source electrode of the second transistor T2 isconnected to the input end of the fourth phase inverter M4, the sourceelectrode of the third transistor T3 is connected to the input end ofthe fourth phase inverter M4, the input end of the seventh phaseinverter is connected to the second control end of the thirdtransmission gate F3 and the first control end of the fourthtransmission gate F4.

It should be appreciated that, types of the first transistor T1, thesecond transistor T2, the third transistor T3 and the transistorsconstituting the other elements (e.g., the phase inverters, thethree-state gates and the transmission gates) are not particularlydefined in the embodiments of the present disclosure. In other words,they may be N-type transistors or P-type transistors. An operatingprinciple of the touch driving unit will be described hereinafter whenthe first transistor T1, the second transistor T2 and the thirdtransistor T3 are all P-type transistors. Of course, a circuit designwhere the transistors are N-type transistors also falls within the scopeof the present disclosure.

Referring to FIG. 3, which is a signal sequence diagram of the touchdriving unit in FIG. 2, and the operating principle of the touch drivingunit will be described hereinafter in association with FIG. 3.

At a stage A-B, a signal from the input signal end Input, a signal fromthe second clock signal end Clk2 and a signal from the touch samplingsignal end TX_EN are all low level signals, a signal from the firstclock signal end Clk1 is a high level signal, and a signal from thecommon electrode signal end VCOM is a low level signal. The high levelsignal from the first clock signal end Clk1 is changed into a low levelsignal through the first phase inverter M1, and then the low levelsignal is simultaneously applied to the second control end of the firstthree-state gate S1 and the first control end of the second three-stategate S2, so as to turn on the first three-state gate S1 and turn off thesecond three-state gate S2. The first three-state gate S1 outputs a highlevel signal to the second control end of the first transmission gate F1and the gate electrode of the first transistor T1, and the high levelsignal is changed into a low level signal by the second phase inverterM2 and then the low level signal is applied to the first control end ofthe first transmission gate F1, so as to turn off the first transmissiongate F1 and turn on the first transistor T1. A low level signal isreceived by the input end of the third phase inverter M3, and a highlevel signal is outputted by the third phase inverter M3, so as to turnoff the second transmission gate F2 and turn on the second transistorT2. A low level signal from the low level end VGL is applied by thesecond transistor T2 sequentially to the fourth phase inverter M4, thefifth phase inverter M5, the sixth phase inverter M6 and the seventhphase inverter M7, and then the seventh phase inverter M7 outputs a lowlevel signal to the first control end of the third transmission gate F3and the second control end of the fourth transmission gate F4, so as toturn off the third transmission gate F3 and turn on the fourthtransmission gate F4. A signal from the output end Output of the touchdriving unit is identical to a signal from the common electrode signalend VCOM, i.e., a low level signal.

At a stage B-C, a signal from the first clock signal end Clk1 is a highlevel signal, a signal from the second clock signal end Clk2 and asignal from the touch sampling signal end TX_EN are both low levelsignals, and a signal from the input signal end Input is a low levelsignal at a first half stage and a high level signal at a second halfstage. When the signal from the input signal end Input is a low levelsignal, an operating principle of the touch driving unit at this stageis identical to that at the stage A-B. When the signal from the inputsignal end Input is a high level signal, the high level signal from thefirst clock signal end Clk1 is changed by the first phase inverter M1into a low level signal, and this low level signal is simultaneouslyapplied to the second control end of the first three-state gate S1 andthe first control end of the second three-state gate S2, so as to turnon the first three-state gate S1 and turn off the second three-stategate S2. The high level signal from the input signal end Input isapplied to the input end of the first three-state gate S1, the firstthree-state gate S1 outputs a low level signal to the input end of thesecond phase inverter M2, the second control end of the firsttransmission gate F1and the gate electrode of the first transistor T1,and then the second phase inverter M2 outputs a high level signal to thefirst control end of the first transmission gate F1, so as to turn onthe first transmission gate F1 and turn off the first transistor T1. Thefirst transmission gate F1 outputs a low level signal to the firstcontrol end of the second transmission gate F2 and the input end of thethird phase inverter M3, and then the third phase inverter M3 outputs ahigh level signal to the second control end of the second transmissiongate F2 and the gate electrode of the second transistor T2, so as toturn off the second transmission gate F2 and turn on the secondtransistor T2. A low level signal from the low level end VGL is receivedby the input end of the fourth transistor T4 through the secondtransistor T2 and applied to the fourth phase inverter M4, the fifthphase inverter M5, the sixth phase inverter M6 and the seventh phaseinverter M7, and then the seventh phase inverter M7 outputs a low levelsignal to the first control end of the third transmission gate F3 andthe second control end of the fourth transmission gate F4, so as to turnoff the third transmission gate F3 and turn on the fourth transmissiongate F4. A signal from the output end Output of the touch driving unitis identical to a signal from the common electrode signal end VCOM,i.e., a low level signal.

At a stage C-D, a signal from the first clock signal end Clk1 is a lowlevel signal, a signal from the second clock signal end Clk2 and asignal from the touch sampling signal end TX_EN are both high levelsignals, and a signal from the input signal end Input is a high levelsignal at a first half stage and a low level signal at a second halfstage. The low level signal from the first clock signal end Clk1 isreceived by the input end of the first phase inverter M1, and a highlevel signal is outputted by the first phase inverter M1 to the secondcontrol end of the first three-state gate S1 and the first control endof the second three-state gate S2, and the low level signal from thefirst clock signal end Clk1 is applied to the first control end of thefirst three-state gate S1 and the second control end of the secondthree-state gate S2, so as to turn off the first three-state gate S1 andturn on the second three-state gate S2. At this time, the signal fromthe input signal end Input, regardless of a high level signal or a lowlevel signal, cannot be outputted by the first three-state gate S1. Theinput end of the second three-state gate S2 is maintained at a highlevel like the stage B-C, and the second three-state gate S2 outputs alow level signal to the input end of the second phase inverter M2, thegate electrode of the first transistor T1 and the second control end ofthe first transmission gate F1, so as to turn off the first transistorT1. The second phase inverter M2 outputs a high level signal to thefirst control end of the first transmission gate F1, so as to turn onthe first transmission gate F1. The first transmission gate F1 thenoutputs a high level signal to the input end of the third phase inverterM3 and the first control end of the second transmission gate F2, andthen the third phase inverter M3 outputs a low level signal to thesecond control end of the second transmission gate F2 and the gateelectrode of the second transistor T2, so as to turn on the secondtransmission gate F2 and turn off the second transistor T2. The secondtransmission gate F2 outputs a high level signal sequentially to thefourth phase inverter M4, the fifth phase inverter M5, the sixth phaseinverter M6 and the seventh phase inverter M7, and then the seventhphase inverter M7 outputs a high level signal to the first control endof the third transmission gate F3 and the second control end of thefourth transmission gate F4, so as to turn on the third transmissiongate F3 and turn off the fourth transmission gate F4. A signal from theoutput end Output of the touch driving unit is identical to a signalfrom the touch signal end TX, i.e., a dense, square-wave signal.

At a stage D-E, a signal from the first clock signal end Clk1, a signalfrom the input signal end Input and a signal from the touch samplingsignal end TX_EN are all low level signals, and a signal from the secondclock signal end Clk2 is a high level signal. The input end of the firstphase inverter M1 receives the low level signal from the first clocksignal end Clk1, the first phase inverter M1 outputs a high level signalto the second control end of the first three-state gate S1 and the firstcontrol end of the second three-state gate S2, and the low level signalfrom the first clock signal end Clk1 is applied to the first control endof the first three-state gate S1 and the second control end of thesecond three-state gate S2, so as to turn off the first three-state gateS1 and turn on the second three-state gate S2. The input end of thesecond three-state gate S2 is maintained at a high level like the stageC-D, and the second three-state gate S2 outputs a low level signal tothe input end of the second phase inverter M2, the gate electrode of thefirst transistor T1 and the second control end of the first transmissiongate F1, so as to turn off the first transistor T1. The second phaseinverter M2 outputs a high level signal to the first control end of thefirst transmission gate F1, so as to turn on the first transmission gateF1. Then, the first transmission gate F1 outputs a high level signal tothe input end of the third phase inverter M3 and the first control endof the second transmission gate F2, the third phase inverter M3 outputsa low level signal to the second control end of the second transmissiongate F2, and the second transmission gate F2 outputs a signal identicalto a signal from the touch sampling signal end TX_EN, i.e., a low levelsignal, sequentially to the fourth phase inverter M4, the fifth phaseinverter M5, the sixth phase inverter M6 and the seventh phase inverterM7. The seventh phase inverter M7 then outputs a low level signal to thefirst control end of the third transmission gate F3 and the secondcontrol end of the fourth transmission gate F4, so as to turn off thethird transmission gate F3 and turn on the fourth transmission gate F4.A signal from the output end Output of the touch driving unit isidentical to a signal from the common electrode signal end VCOM, i.e., alow level signal.

Referring to FIG. 4, on the basis of FIG. 2, the touch driving unitfurther includes a fourth transistor T4, a gate electrode of the fourthtransistor T4 is connected to a reset signal end, a source electrode ofthe fourth transistor T4 is connected to the input end of the firstphase inverter M1, the output end of the first three-state gate S1, theoutput end of the second three-state gate S2, the second control end ofthe first transmission gate F1 and the gate electrode of the firsttransistor T1, and a drain electrode of the fourth transistor T4 isconnected to a high level end.

An operating principle of the fourth transistor T4 will be describedhereinafter by taking a P-type transistor as an example. When a signalfrom the reset signal end Reset is a high level signal, the fourthtransistor T4 is turned on, and a high level signal from the high levelend VGH is applied by the fourth transistor T4 to the second control endof the first transmission gate F1 and the gate electrode of the firsttransistor T1, so as to turn off the first transmission gate F1 and turnon the first transistor T1. A signal from the output end of the thirdphase inverter M3 is a high level signal, so the second transmissiongate F2 is turned off and the second transistor T2 is turned on. Asignal from the input end of the fourth phase inverter M4 is a low levelsignal, and the seventh phase inverter M7 outputs a low level signal, soas to turn off the third transmission gate F3 and turn on the fourthtransmission gate F4. At this time, the output end Output of the touchdriving unit outputs a low level signal. As a result, when the signalfrom the reset signal end Reset is a high level signal, the output endOutput of the touch driving unit outputs a low level signal all thetime, so as to achieve a resetting operation.

The present disclosure further provides in some embodiments a touchpanel including multiple levels of the touch driving units in FIGS. 1, 2and 4. Referring to FIG. 5, the output end of the shift register moduleP1 in a preceding-level touch driving unit is connected to the inputsignal end of a current-level touch driving unit, and the output end ofthe shift register module P1 in a first-level touch driving unit isconnected to the input signal end of a second-level touch driving unit.Through this design, it is able for the signal from the output end ofthe preceding-level touch driving unit to be shifted from the signalfrom the output end of the current-level touch driving unit. As shown inFIG. 3, the signal from the output end Output of the first-level touchdriving unit is shifted from the signal from the output end Output 2 ofthe second-level touch driving unit.

It should be appreciated that, the touch driving unit in the touch panelhas the same advantages as that mentioned in the above embodiments, andthese advantages will not be repeated herein.

The present disclosure further provides in some embodiments a displaydevice including the above-mentioned touch panel in FIG. 5. The touchpanel in the display device has the same advantages as that mentioned inthe above embodiments, and thus will not be repeated herein. To bespecific, the display device may be any product or member having adisplay function, such as an organic light-emitting diode display panel,a liquid crystal display panel, an electronic paper, a mobile phone, aflat-panel computer, a television, a display, a laptop computer, adigital photo frame or a navigator.

The above-mentioned features, structures, materials or characteristicsmay be combined in an appropriate manner in one or more embodiments.

The above are merely the preferred embodiments of the presentdisclosure. It should be appreciated that, a person skilled in the artmay make further modifications and improvements without departing fromthe principle of the present disclosure, and these modifications andimprovements shall also fall within the scope of the present disclosure.

What is claimed is:
 1. A touch driving unit, comprising: a shiftregister module, wherein an input end of the shift register module isconnected to a first clock signal end and an input signal end, an outputend of the shift register module is connected to a gating module, andthe shift register module is configured to generate a triggering signal;the gating module, wherein an input end of the gating module isconnected to a second clock signal end, a touch sampling signal end, acommon electrode enabling signal end, a low level end and the shiftregister module, an output end of the gating module is connected to anamplification module, and the gating module is configured to generate acontrol signal in accordance with the triggering signal so as to controla signal outputted from an output module; the amplification module,wherein an input end of the amplification module is connected to thegating module, an output end of the amplification module is connected tothe output module, and the amplification module is configured to amplifythe control signal; and the output module, wherein an input end of theoutput module is connected to a touch signal end and a common electrodesignal end, an output end of the output module is connected to an outputend of the touch driving unit, and the output module is configured tooutput a signal from the touch signal end or a signal from the commonelectrode signal end.
 2. The touch driving unit according to claim 1,wherein the shift register module comprises a first phase inverter, asecond phase inverter, a first three-state gate and a second three-stategate, wherein an input end of the first phase inverter is connected tothe first clock signal end, a first control end of the first three-stategate and a second control end of the second three-state gate, an outputend of the first phase inverter is connected to a second control end ofthe first three-state gate and a first control end of the secondthree-state gate; an input end of the second phase inverter is connectedto an output end of the first three-state gate, an output end of thesecond three-state gate and the gating module, and an output end of thesecond phase inverter is connected to an input end of the secondthree-state gate and the gating module; an input end of the firstthree-state gate is connected to the input signal end, the output end ofthe first three-state gate is connected to output end of the secondthree-state gate and the gating module, the first control end of thefirst three-state gate is connected to the first clock signal end andthe second control end of the second three-state gate, and the secondcontrol end of the first three-state gate is connected to the firstcontrol end of the second three-state gate; and the input end of thesecond three-state gate is connected to the gating module, the outputend of the second three-state gate is connected to the gating module,and the second control end of the second three-state gate is connectedto the first clock signal end.
 3. The touch driving unit according toclaim 2, wherein the gating module includes a first transmission gate, asecond transmission gate, a third phase inverter, a first transistor, asecond transistor and a third transistor, wherein an input end of thefirst transmission gate is connected to the second clock signal end, anoutput end of the first transmission gate is connected to a sourceelectrode of the first transistor, an input end of the third phaseinverter and a first control end of the second transmission gate, afirst control end of the first transmission gate is connected to theshift register module, and a second control end of the firsttransmission gate is connected to a gate electrode of the firsttransistor and the shift register module; an input end of the secondtransmission gate is connected to the touch sampling signal end, anoutput end of the second transmission gate is connected to a sourceelectrode of the second transistor, a source electrode of the thirdtransistor and the amplification module, the first control end of thesecond transmission gate is connected to the source electrode of thefirst transistor and the input end of the third phase inverter, and asecond control end of the second transmission gate is connected to anoutput end of the third inverter and a gate electrode of the secondtransistor; the input end of the third phase inverter is connected tothe source electrode of the first transistor, and the output end of thethird phase inverter is connected to the gate electrode of the secondtransistor; the gate electrode of the first transistor is connected tothe shift register module, and a drain electrode of the first transistoris connected to the low level end; the source electrode of the secondtransistor is connected to the source electrode of the third transistorand the amplification module, and a drain electrode of the secondtransistor is connected to a drain electrode of the third transistor andthe low level end; and the source electrode of the third transistor isconnected to the common electrode enabling signal end.
 4. The touchdriving unit according to claim 3, wherein the amplification modulecomprises a fourth phase inverter, a fifth phase inverter, a sixth phaseinverter and a seventh phase inverter, wherein an input end of thefourth phase inverter is connected to the gating module, and an outputend of the fourth phase inverter is connected to an input end of thefifth phase inverter; an output end of the fifth phase inverter isconnected to an input end of the sixth phase inverter; an output end ofthe sixth phase inverter is connected to an input end of the seventhphase inverter; and the input end of the seventh phase inverter isconnected to the output module, and the output end of the seventh phaseinverter is connected to the output module.
 5. The touch driving unitaccording to claim 4, wherein the output module comprises a thirdtransmission gate and a fourth transmission gate, wherein an input endof the third transmission gate is connected to the touch signal end, anoutput end of the third transmission gate is connected to the output endof the touch driving unit and an output end of the fourth transmissiongate, a first control end of the third transmission gate is connected toa second control end of the fourth transmission gate and theamplification module, and a second control end of the third transmissiongate is connected to the amplification module; and an input end of thefourth transmission gate is connected to the common electrode signalend, the output end of the fourth transmission gate is connected to theoutput end of the touch driving unit, a first control end of the fourthtransmission gate is connected to the amplification module, and thesecond control end of the fourth transmission gate is connected to theamplification module.
 6. The touch driving unit according to claim 5,wherein the input end of the second phase inverter is connected to thesecond control end of the first transmission gate and the gate electrodeof the first transistor, and the output end of the second phase inverteris connected to the first control end of the first transmission gate;the first control end of the first transmission gate is connected to theinput end of the second three-state gate; the output end of the secondtransmission gate is connected to the input end of the fourth phaseinverter; the source electrode of the second transistor is connected tothe input end of the fourth phase inverter; the source electrode of thethird transistor is connected to the input end of the fourth phaseinverter; and the input end of the seventh phase inverter is connectedto the second control end of the third transmission gate and the firstcontrol end of the fourth transmission gate.
 7. The touch driving unitaccording to claim 5, wherein the input end of the second phase inverteris connected to the second control end of the first transmission gateand the gate electrode of the first transistor, and the output end ofthe second phase inverter is connected to the first control end of thefirst transmission gate; the first control end of the first transmissiongate is connected to the input end of the second three-state gate; theoutput end of the second transmission gate is connected to the input endof the fourth phase inverter; the source electrode of the secondtransistor is connected to the input end of the fourth phase inverter;the source electrode of the third transistor is connected to the inputend of the fourth phase inverter; and the input end of the seventh phaseinverter is connected to the second control end of the thirdtransmission gate and the first control end of the fourth transmissiongate.
 8. The touch driving unit according to claim 5, wherein the inputend of the second phase inverter is connected to the second control endof the first transmission gate and the gate electrode of the firsttransistor, and the output end of the second phase inverter is connectedto the first control end of the first transmission gate; the firstcontrol end of the first transmission gate is connected to the input endof the second three-state gate; the output end of the secondtransmission gate is connected to the input end of the fourth phaseinverter; the source electrode of the second transistor is connected tothe input end of the fourth phase inverter; the source electrode of thethird transistor is connected to the input end of the fourth phaseinverter; and the input end of the seventh phase inverter is connectedto the second control end of the third transmission gate and the firstcontrol end of the fourth transmission gate.
 9. The touch driving unitaccording to claim 5, wherein the input end of the second phase inverteris connected to the second control end of the first transmission gateand the gate electrode of the first transistor, and the output end ofthe second phase inverter is connected to the first control end of thefirst transmission gate; the first control end of the first transmissiongate is connected to the input end of the second three-state gate; theoutput end of the second transmission gate is connected to the input endof the fourth phase inverter; the source electrode of the secondtransistor is connected to the input end of the fourth phase inverter;the source electrode of the third transistor is connected to the inputend of the fourth phase inverter; and the input end of the seventh phaseinverter is connected to the second control end of the thirdtransmission gate and the first control end of the fourth transmissiongate.
 10. The touch driving unit according to claim 3, furthercomprising a fourth transistor, a gate electrode of the fourthtransistor is connected to a reset signal end, a source electrode of thefourth transistor is connected to the input end of the first phaseinverter, the output end of the first three-state gate, the output endof the second three-state gate, the second control end of the firsttransmission gate and the gate electrode of the first transistor, and adrain electrode of the fourth transistor is connected to a high levelend.
 11. The touch driving unit according to claim 3, wherein the firsttransistor, the second transistor and the third transistor are allN-type transistors or P-type transistors.
 12. The touch driving unitaccording to claim 1, wherein the shift register module comprises afirst phase inverter, a second phase inverter, a first three-state gateand a second three-state gate, wherein an input end of the first phaseinverter is connected to the first clock signal end, a first control endof the first three-state gate and a second control end of the secondthree-state gate, an output end of the first phase inverter is connectedto a second control end of the first three-state gate and a firstcontrol end of the second three-state gate; an input end of the secondphase inverter is connected to an output end of the first three-stategate, an output end of the second three-state gate and the gatingmodule, and an output end of the second phase inverter is connected toan input end of the second three-state gate and the gating module; aninput end of the first three-state gate is connected to the input signalend, the output end of the first three-state gate is connected to outputend of the second three-state gate and the gating module, the firstcontrol end of the first three-state gate is connected to the firstclock signal end and the second control end of the second three-stategate, and the second control end of the first three-state gate isconnected to the first control end of the second three-state gate; andthe input end of the second three-state gate is connected to the gatingmodule, the output end of the second three-state gate is connected tothe gating module, and the second control end of the second three-stategate is connected to the first clock signal end, the gating moduleincludes a first transmission gate, a second transmission gate, a thirdphase inverter, a first transistor, a second transistor and a thirdtransistor, wherein an input end of the first transmission gate isconnected to the second clock signal end, an output end of the firsttransmission gate is connected to a source electrode of the firsttransistor, an input end of the third phase inverter and a first controlend of the second transmission gate, a first control end of the firsttransmission gate is connected to the shift register module, and asecond control end of the first transmission gate is connected to a gateelectrode of the first transistor and the shift register module; aninput end of the second transmission gate is connected to the touchsampling signal end, an output end of the second transmission gate isconnected to a source electrode of the second transistor, a sourceelectrode of the third transistor and the amplification module, thefirst control end of the second transmission gate is connected to thesource electrode of the first transistor and the input end of the thirdphase inverter, and a second control end of the second transmission gateis connected to an output end of the third inverter and a gate electrodeof the second transistor; the input end of the third phase inverter isconnected to the source electrode of the first transistor, and theoutput end of the third phase inverter is connected to the gateelectrode of the second transistor; the gate electrode of the firsttransistor is connected to the shift register module, and a drainelectrode of the first transistor is connected to the low level end; thesource electrode of the second transistor is connected to the sourceelectrode of the third transistor and the amplification module, and adrain electrode of the second transistor is connected to a drainelectrode of the third transistor and the low level end; and the sourceelectrode of the third transistor is connected to the common electrodeenabling signal end, and the amplification module comprises a fourthphase inverter, a fifth phase inverter, a sixth phase inverter and aseventh phase inverter, wherein an input end of the fourth phaseinverter is connected to the gating module, and an output end of thefourth phase inverter is connected to an input end of the fifth phaseinverter; an output end of the fifth phase inverter is connected to aninput end of the sixth phase inverter; an output end of the sixth phaseinverter is connected to an input end of the seventh phase inverter; andthe input end of the seventh phase inverter is connected to the outputmodule, and the output end of the seventh phase inverter is connected tothe output module, and the output module comprises a third transmissiongate and a fourth transmission gate; an input end of the thirdtransmission gate is connected to the touch signal end, an output end ofthe third transmission gate is connected to the output end of the touchdriving unit and an output end of the fourth transmission gate, a firstcontrol end of the third transmission gate is connected to a secondcontrol end of the fourth transmission gate and the amplificationmodule, and a second control end of the third transmission gate isconnected to the amplification module; and an input end of the fourthtransmission gate is connected to the common electrode signal end, theoutput end of the fourth transmission gate is connected to the outputend of the touch driving unit, a first control end of the fourthtransmission gate is connected to the amplification module, and thesecond control end of the fourth transmission gate is connected to theamplification module.
 13. A touch panel, comprising multiple levels oftouch driving units, and each of the touch driving units is the touchdriving unit according to claim
 1. 14. The touch panel according toclaim 13, wherein the shift register module comprises a first phaseinverter, a second phase inverter, a first three-state gate and a secondthree-state gate, wherein an input end of the first phase inverter isconnected to the first clock signal end, a first control end of thefirst three-state gate and a second control end of the secondthree-state gate, an output end of the first phase inverter is connectedto a second control end of the first three-state gate and a firstcontrol end of the second three-state gate; an input end of the secondphase inverter is connected to an output end of the first three-stategate, an output end of the second three-state gate and the gatingmodule, and an output end of the second phase inverter is connected toan input end of the second three-state gate and the gating module; aninput end of the first three-state gate is connected to the input signalend, the output end of the first three-state gate is connected to outputend of the second three-state gate and the gating module, the firstcontrol end of the first three-state gate is connected to the firstclock signal end and the second control end of the second three-stategate, and the second control end of the first three-state gate isconnected to the first control end of the second three-state gate; andthe input end of the second three-state gate is connected to the gatingmodule, the output end of the second three-state gate is connected tothe gating module, and the second control end of the second three-stategate is connected to the first clock signal end.
 15. The touch panelaccording to claim 14, wherein the gating module includes a firsttransmission gate, a second transmission gate, a third phase inverter, afirst transistor, a second transistor and a third transistor, wherein aninput end of the first transmission gate is connected to the secondclock signal end, an output end of the first transmission gate isconnected to a source electrode of the first transistor, an input end ofthe third phase inverter and a first control end of the secondtransmission gate, a first control end of the first transmission gate isconnected to the shift register module, and a second control end of thefirst transmission gate is connected to a gate electrode of the firsttransistor and the shift register module; an input end of the secondtransmission gate is connected to the touch sampling signal end, anoutput end of the second transmission gate is connected to a sourceelectrode of the second transistor, a source electrode of the thirdtransistor and the amplification module, the first control end of thesecond transmission gate is connected to the source electrode of thefirst transistor and the input end of the third phase inverter, and asecond control end of the second transmission gate is connected to anoutput end of the third inverter and a gate electrode of the secondtransistor; the input end of the third phase inverter is connected tothe source electrode of the first transistor, and the output end of thethird phase inverter is connected to the gate electrode of the secondtransistor; the gate electrode of the first transistor is connected tothe shift register module, and a drain electrode of the first transistoris connected to the low level end; the source electrode of the secondtransistor is connected to the source electrode of the third transistorand the amplification module, and a drain electrode of the secondtransistor is connected to a drain electrode of the third transistor andthe low level end; and the source electrode of the third transistor isconnected to the common electrode enabling signal end.
 16. The touchpanel according to claim 15, wherein the amplification module comprisesa fourth phase inverter, a fifth phase inverter, a sixth phase inverterand a seventh phase inverter, wherein an input end of the fourth phaseinverter is connected to the gating module, and an output end of thefourth phase inverter is connected to an input end of the fifth phaseinverter; an output end of the fifth phase inverter is connected to aninput end of the sixth phase inverter; an output end of the sixth phaseinverter is connected to an input end of the seventh phase inverter; andthe input end of the seventh phase inverter is connected to the outputmodule, and the output end of the seventh phase inverter is connected tothe output module.
 17. The touch panel according to claim 16, whereinthe output module comprises a third transmission gate and a fourthtransmission gate, wherein an input end of the third transmission gateis connected to the touch signal end, an output end of the thirdtransmission gate is connected to the output end of the touch drivingunit and an output end of the fourth transmission gate, a first controlend of the third transmission gate is connected to a second control endof the fourth transmission gate and the amplification module, and asecond control end of the third transmission gate is connected to theamplification module; and an input end of the fourth transmission gateis connected to the common electrode signal end, the output end of thefourth transmission gate is connected to the output end of the touchdriving unit, a first control end of the fourth transmission gate isconnected to the amplification module, and the second control end of thefourth transmission gate is connected to the amplification module. 18.The touch panel according to claim 17, wherein the input end of thesecond phase inverter is connected to the second control end of thefirst transmission gate and the gate electrode of the first transistor,and the output end of the second phase inverter is connected to thefirst control end of the first transmission gate; the first control endof the first transmission gate is connected to the input end of thesecond three-state gate; the output end of the second transmission gateis connected to the input end of the fourth phase inverter; the sourceelectrode of the second transistor is connected to the input end of thefourth phase inverter; the source electrode of the third transistor isconnected to the input end of the fourth phase inverter; and the inputend of the seventh phase inverter is connected to the second control endof the third transmission gate and the first control end of the fourthtransmission gate.
 19. The touch panel according to claim 13, wherein inthe multiple levels of touch driving units, apart from a last-leveltouch driving unit, an output end of the shift register module in eachlevel of touch driving unit is connected to an input signal end of asucceeding-level touch driving unit.
 20. A display device, comprisingthe touch panel according to claim 13.